Envelope opener



FIG. 1 is a front perspective view of the first embodiment of the envelope opener;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a rear elevational view thereof;

FIG. 8 is a front perspective view of the second embodiment of the envelope opener;

FIG. 9 is a front elevational view thereof;

FIG. 10 is a top plan view thereof;

FIG. 11 is a bottom view thereof;

FIG. 12 is a left side elevational view thereof;

FIG. 13 is a right side elevational view thereof;

FIG. 14 is a rear elevational view thereof;

FIG. 15 is a front perspective view of the third embodiment of the envelope opener;

FIG. 16 is a front elevational view thereof;

FIG. 17 is a top plan view thereof;

FIG. 18 is a bottom view thereof;

FIG. 19 is a left side elevational view thereof;

FIG. 20 is a right side elevational view thereof; and,

FIG. 21 is a rear elevational view thereof.

The writing instrument depicted by means of broken lines in FIGS. 15, and 19 through 21, has been shown for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for an envelope opener, as shown and described. 